Fix Flatpak source build: binary paths, wasm skip, lockfile patching, metainfo

- Fix protoc paths (strip-components flattens archive structure)
- Patch lockfile at build time for nested workspace deps missing resolved URLs
- Skip wasm-pack build (pre-built wasm is checked into repo)
- Use cargo build directly instead of tauri CLI (avoids inotify limits)
- Fix binary name/path (yaak-app from workspace root target dir)
- Install icons from source tree instead of deb bundle
- Generate desktop file inline instead of extracting from deb
- Add metainfo as file source (not in tagged release yet)
- Add build-wasm.cjs script with SKIP_WASM_BUILD env var support
- Update generate-sources.sh to resolve nested node_modules deps

crates/yaak-templates/package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "bootstrap": "npm run build",
     "build": "run-s build:*",
-    "build:pack": "wasm-pack build --target bundler",
+    "build:pack": "node ../../scripts/build-wasm.cjs",
     "build:clean": "rimraf ./pkg/.gitignore"
   },
   "devDependencies": {